private async Task <SsrResult> PrerenderIfNeeded(AppDescriptor app)
{
if (!ssrDecider.ShouldPrerender())
{
return(null);
}
SsrResult ssrResult = null;
var ssrBundleUrl = string.Format(serverBundleUrlTemplate, app.BundlePrefix);
var serverRenderingModuleFile = env.WebRootFileProvider.GetFileInfo(ssrBundleUrl);
logger.LogInformation($"[SSR] Bundle URL: {ssrBundleUrl}. Resolved file path: {serverRenderingModuleFile.PhysicalPath}");
if (serverRenderingModuleFile.Exists)
{
var data = new SsrData {
baseUrl = app.BaseUrl
};
ssrResult = await SsrRenderer.RenderAsync(Request, ssrBundleUrl, app.BaseUrl, data);
if (ssrResult != null)
{
logger.LogInformation("[SSR] Success");
}
}
else
{
logger.LogWarning("[SSR] Pre-rendering skipped because bundle file doesn't exist.");
}
return(ssrResult);
}
private async Task <AppPageViewModel> CreateAppModel(AppDescriptor app)
{
var ssrResult = await PrerenderIfNeeded(app);
var mainBundleUrl = string.Format(mainBundleUrlTemplate, app.BundlePrefix);
var model = new AppPageViewModel(mainBundleUrl, app.BaseUrl, ssrResult);
return(model);
}
